I've not had many issues with Solina before - unlike some on the forum. I've been running it on a 13" 2012 2.5 MBP for the last couple of years. It's on Logic Pro X on Yosemite 10.10.5 However, I went to update to the latest version of the V collection and Solina is no longer recognised by Logic Pro - it says it's not installed...but the software centre says all is tickety boo...any ideas?